UK Wildlife

Night Sky Light Pollution and Wildlife

Light pollution from urban and rural development disrupts wildlife including nocturnal species, migratory birds, and insects, with significant welfare and ecological consequences.

Key Facts

Light pollution affects over two thirds of the UK's land area including rural habitats
Artificial light at night disrupts bat foraging, migration, and breeding behaviour
Moths are attracted to artificial lights, disrupting reproduction and causing population declines
Migratory birds become disorientated by urban light leading to collision mortality
Dark sky reserves provide refuges from light pollution for nocturnal wildlife

Welfare Considerations

Light pollution welfare impacts on nocturnal wildlife are significant and often overlooked. Switching to warmer-toned LEDs, using motion sensors, and directing light downward can significantly reduce impacts. Advocacy for dark sky policies protects wildlife welfare across broad areas.

What You Can Do

Switch outdoor lights to warmer-toned LEDs (2700K or below) to reduce moth impacts
Use motion-sensing lights rather than continuous illumination around your home
Support dark sky reserve designation and advocate for light pollution reduction policies